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Carry-Looker Adder Delay Formula

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Carry-Looker Adder Delay computes group generate signals as well as group propagates signals to avoid waiting for a ripple to determine if the first group generates a carry. Check FAQs

t cla = t pg + t gp + ((n - 1) + (K - 1)) \cdot T ao + T xor

t_cla - Carry-Looker Adder Delay?t_pg - Propagation Delay?t_gp - Group Propagation Delay?n - N-Input AND Gate?K - K-Input AND Gate?T_ao - AND-OR Gate Delay?T_xor - XOR Delay?

Carry-Looker Adder Delay Example

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Here is how the Carry-Looker Adder Delay equation looks like with Values.

Here is how the Carry-Looker Adder Delay equation looks like with Units.

Here is how the Carry-Looker Adder Delay equation looks like.

29.35 = 8.01 + 5.5 + ((2 - 1) + (7 - 1)) \cdot 2.05 + 1.49

29.35ns = 8.01ns + 5.5ns + ((2 - 1) + (7 - 1)) \cdot 2.05ns + 1.49ns

29.35 = 8.01 + 5.5 + ((2 - 1) + (7 - 1)) \cdot 2.05 + 1.49

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Carry-Looker Adder Delay Solution

Follow our step by step solution on how to calculate Carry-Looker Adder Delay?

FIRST Step Consider the formula

t cla = t pg + t gp + ((n - 1) + (K - 1)) \cdot T ao + T xor

Next Step Substitute values of Variables

∴

t cla = 8.01ns + 5.5ns + ((2 - 1) + (7 - 1)) \cdot 2.05ns + 1.49ns

Next Step Convert Units

∴

t cla = 8E-9s + 5.5E-9s + ((2 - 1) + (7 - 1)) \cdot 2.1E-9s + 1.5E-9s

Next Step Prepare to Evaluate

∴

t cla = 8E-9 + 5.5E-9 + ((2 - 1) + (7 - 1)) \cdot 2.1E-9 + 1.5E-9

Next Step Evaluate

∴

t cla = 2.935E-08s

LAST Step Convert to Output's Unit

∴

t cla = 29.35ns

Carry-Looker Adder Delay Formula Elements

Variables

Carry-Looker Adder Delay

Carry-Looker Adder Delay computes group generate signals as well as group propagates signals to avoid waiting for a ripple to determine if the first group generates a carry.

Symbol: t_cla

Measurement: TimeUnit: ns

Note: Value should be greater than 0.

Formulas to find Carry-Looker Adder Delay

Propagation Delay

Propagation delay typically refers to the rise time or fall time in logic gates. This is the time it takes for a logic gate to change its output state based on a change in the input state.

Symbol: t_pg

Measurement: TimeUnit: ns

Note: Value should be greater than 0.

Formulas to find Propagation Delay

Group Propagation Delay

Group Propagation Delay is a device performance property that helps to characterize time delay.

Symbol: t_gp

Measurement: TimeUnit: ns

Note: Value should be greater than 0.

Formulas to find Group Propagation Delay

N-Input AND Gate

N-input AND gate is defined as the number of inputs in the AND logic gate for the desirable output.

Symbol: n

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find N-Input AND Gate

K-Input AND Gate

K-input AND gate is defined as the kth input in the AND gate among the logical gates.

Symbol: K

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find K-Input AND Gate

AND-OR Gate Delay

AND-OR Gate Delay in the gray cell is defined as the delay in the computing time in AND/OR gate when logic is passed through it.

Symbol: T_ao

Measurement: TimeUnit: ns

Note: Value should be greater than 0.

Formulas to find AND-OR Gate Delay

XOR Delay

XOR Delay is the propagation delay of XOR gate.

Symbol: T_xor

Measurement: TimeUnit: ns

Note: Value should be greater than 0.

Formulas to find XOR Delay

Other formulas in Array Datapath Subsystem category

Go Ground Capacitance

C gnd = (\frac{V agr \cdot C adj}{V tm}) - C adj

Go Carry-Ripple Adder Critical Path Delay

T ripple = t pg + (N gates - 1) \cdot T ao + T xor

How to Evaluate Carry-Looker Adder Delay?

Carry-Looker Adder Delay evaluator uses Carry-Looker Adder Delay = Propagation Delay+Group Propagation Delay+((N-Input AND Gate-1)+(K-Input AND Gate-1))*AND-OR Gate Delay+XOR Delay to evaluate the Carry-Looker Adder Delay, The Carry-Looker Adder delay formula is defined as similar to the carry-skip adder, but computes group generate signals as well as group propagate signals to avoid waiting for a ripple to determine if the first group generates a carry. Carry-Looker Adder Delay is denoted by t_cla symbol.

How to evaluate Carry-Looker Adder Delay using this online evaluator? To use this online evaluator for Carry-Looker Adder Delay, enter Propagation Delay (t_pg), Group Propagation Delay (t_gp), N-Input AND Gate (n), K-Input AND Gate (K), AND-OR Gate Delay (T_ao) & XOR Delay (T_xor) and hit the calculate button.

FAQs on Carry-Looker Adder Delay

What is the formula to find Carry-Looker Adder Delay?

The formula of Carry-Looker Adder Delay is expressed as Carry-Looker Adder Delay = Propagation Delay+Group Propagation Delay+((N-Input AND Gate-1)+(K-Input AND Gate-1))*AND-OR Gate Delay+XOR Delay. Here is an example- 2.9E+10 = 8.01E-09+5.5E-09+((2-1)+(7-1))*2.05E-09+1.49E-09.

How to calculate Carry-Looker Adder Delay?

With Propagation Delay (t_pg), Group Propagation Delay (t_gp), N-Input AND Gate (n), K-Input AND Gate (K), AND-OR Gate Delay (T_ao) & XOR Delay (T_xor) we can find Carry-Looker Adder Delay using the formula - Carry-Looker Adder Delay = Propagation Delay+Group Propagation Delay+((N-Input AND Gate-1)+(K-Input AND Gate-1))*AND-OR Gate Delay+XOR Delay.

Can the Carry-Looker Adder Delay be negative?

No, the Carry-Looker Adder Delay, measured in Time cannot be negative.

Which unit is used to measure Carry-Looker Adder Delay?

Carry-Looker Adder Delay is usually measured using the Nanosecond[ns] for Time. Second[ns], Millisecond[ns], Microsecond[ns] are the few other units in which Carry-Looker Adder Delay can be measured.

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Carry-Looker Adder Delay Formula

Carry-Looker Adder Delay Example

Carry-Looker Adder Delay Solution

Carry-Looker Adder Delay Formula Elements

Other formulas in Array Datapath Subsystem category

How to Evaluate Carry-Looker Adder Delay?

FAQs on Carry-Looker Adder Delay

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